Respuesta :

a = 6 subtract 6a from both sides then add 3 to both sides
capsasha2

Answer:

a = 6

Step-by-step explanation:

  1. Rearrange: 7 × a - 3 - (3 + 6 × a) = 0
  2. Simplify, so it now looks like this: a - 6 = 0
  3. Add 6 to each side, so it now looks like this: a = 6

I hope this helps!